3a thread class right-hand 0.276" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated for repair work only; oversize shank; 0.2172 in. min unf thread series
3a thread class right-hand 0.276" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated for repair work only; oversize shank; 0.2172 in. min unf thread series
2a thread class right-hand 1.638" thread length pan head style 40 thread quantity per inch navy special project passivate screw surface treated unc thread series